excercises with ankle weights

[itsallgood123]

i was planning to just play ball in them.. but sum1 told me it wrecks your knees.. anybody recommend safer and effective excercises for ankle weights?
mostly aimed at strengthening my calves.. and gaining explosiveness and agility/speed?

[PhoenixTroy]

use a weight jacket if you are just trying to add extra weight to your frame. With a jacket it puts all the weight at your c.o.g and not at your ankles.